Fabric of composite material and method of preparing the same

ABSTRACT

A fabric of composite material has a fabric body and a cooling stuff. The fabric body is woven by multiple fibers. The cooling stuff is coated on the fabric body and combined with the fabric body, and has a stuff body and multiple ceramic particles. The stuff body infiltrates within the fabric body. The ceramic particles are distributed within the stuff body. The ceramic particles have high thermal conductivity and high coefficient of thermal radiation. Therefore, the fabric can provide sufficient cooling effect for a portable electronic product.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a fabric, and more particularly to a fabric of composite material and a method of preparing the fabric of composite material.

2. Description of Related Art

Currently, a portable electronic product is designed to be small in volume while functions of the portable electronic product are continuously expanded. When the electronic product is reduced in size with high performance, an efficient heat dissipation mechanism ensures that the electronic product operates smoothly. Therefore, having a sufficient heat dissipation capability is important for the portable electronic product.

Generally, the heat dissipation methods applied on an electronic product comprises using fans, fins, or aluminum-magnesium alloy. The fans or the fins are assembled on the electronic product, and the thermal grease is smeared between the electronic product and the fans or the fins to reduce the contact thermal resistance. However, both the fins and the fans occupy an additional space to accommodate the fans or the fins, such that the fans or the fins are unsuitable for the portable electronic products that are designed toward size minimization. The aluminum-magnesium alloy is applied as a case for the portable electronic product to solve the space problem, but the cost of the aluminum-magnesium alloy is high compared with the fans or the fins.

Therefore, a fabric can be applied on the portable electronic product to solve the space and cost problems. With reference to FIG. 5 and FIG. 6, a fabric comprises multiple longitudinal fibers 50, multiple latitudinal fibers 60, and multiple intervals. The longitudinal fibers 50 are arranged longitudinally and the latitudinal fibers 60 are arranged transversely. The longitudinal fibers 50 and the latitudinal fibers 60 are woven with each other to form the fabric, and the cost is low compared with the aluminum-magnesium alloy. Each interval is formed between two adjacent fibers. When the fabric is applied for the portable electronic product, an additional space is not needed. The intervals of the fabric can help the portable electronic product to dissipate heat to the external environment. However, since the operational power of the portable electronic product tends to get high, the heat-dissipating effect provided by the intervals to dissipate the heat generated from the portable electronic product is insufficient.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a fabric of composite material and method of preparing the composite material.

The fabric of composite material comprises a fabric body and a cooling stuff. The fabric body has multiple fibers woven with each other and multiple intervals. Each interval is formed between each two adjacent fibers of the multiple fibers.

The cooling stuff is coated on the fabric body, fills the intervals, and has two sides, a stuff body filling the intervals, and multiple ceramic particles distributed within the stuff body.

The method of preparing the fabric of composite material comprises acts of preparing a fabric body and a cooling stuff, combing the fabric body and the cooling stuff, and aging the cooling stuff.

The act of preparing a fabric body and a cooling stuff comprises weaving the fabric body by multiple fibers and mixing a stuff base and multiple ceramic particles to form the cooling stuff, wherein the stuff base is a viscous liquid. The act of combining the fabric body and the cooling stuff comprises combining the fabric body and the cooling stuff to let the cooling stuff infiltrate within the fabric body. The act of aging the cooling stuff comprises aging the cooling stuff by placing the combined fabric body and cooling stuff standing for a period of time to make the stuff base hardened.

The cooling stuff fills the intervals of the fabric body. When the fabric is mounted on a portable electronic product, the fabric can dissipate the heat generated from the portable electronic product to the external environment rapidly and efficiently because the ceramic particles have high thermal conductivity and high coefficient of thermal radiation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a cross sectional side view in partial section of a preferred embodiment of a fabric of composite material in accordance with the present invention;

FIG. 2 is an enlarged side view of the fabric of composite material in FIG. 1;

FIG. 3 shows enlarged operational cross sectional side views of the preparation method of the fabric of composite material in FIG. 1;

FIG. 4 is a block diagram of the preparation method of the fabric of composite material in FIG. 1;

FIG. 5 is a perspective view of a conventional fabric; and

FIG. 6 is an enlarged side view in partial section of the convention fabric in FIG. 5.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENT

With reference to FIG. 1, FIG. 2 and FIG. 3, a preferred embodiment of a fabric material in accordance with the present invention comprises a fabric body 10, a cooling stuff 20, and an auxiliary cooling layer 30.

The fabric body 10 comprises multiple fibers 11 and multiple intervals. The fabric body 10 is woven by the fibers 11, such as carbon fibers, glass fibers, or aramid fibers. Each interval is formed between two adjacent fibers of the multiple fibers 11. The cooling stuff 20 is coated on the fabric body 10, fills the intervals, and comprises a stuff body 21 and multiple ceramic particles 22. The stuff body 21 is made of resin, wherein the resin is a viscous liquid initially, and then the resin undergoes aging to make the stuff body 21 hardened. The ceramic particles 22 are distributed within the stuff body 21. Preferably, each ceramic particle 22 is on a nanometer scale. The auxiliary cooling layer 30 is combined with the cooling stuff 20. The auxiliary cooling layer 30 is made of ceramic fibers, fluoride, or copper. Alternatively, the auxiliary cooling layer 30 may be omitted.

The size of each ceramic particle 22 is small, such that the ceramic particles 22 hardly affect the application of other materials. On the other hand, the ceramic particles 22 have capabilities of high thermal conductivity and high coefficient of thermal radiation. Therefore, when the fabric is mounted on a surface of a portable electronic product or is applied as a case of a portable electronic product, the ceramic particles 22 can help the fabric dissipate heat generated from the portable electronic product to the external environment efficiently. The auxiliary cooling layer 30 can be mounted on a side of the cooling stuff 20 or two sides of the cooling stuff 20 to further provide a cooling effect.

With reference to FIG. 3 and FIG. 4, the method of preparing the fabric of composite material comprises: preparing a fabric body 10 and a cooling stuff 20, combining the fabric body 10 with the cooling stuff 20, aging the cooling stuff 20, and combining an auxiliary cooling layer 30.

The fabric body 10 is woven by multiple fibers. The cooling stuff 20 is made by mixing a stuff base 21 and multiple ceramic particles. The stuff base 21 is a viscous liquid, such that the ceramic particles can be distributed evenly. Preferably, the stuff base 21 is made of resin. The cooling stuff 20 can be combined with the fabric body 10 by spraying or pre-impregnation, and infiltrates within the fabric body 10 because the stuff base 21 can adhere to the fabric body 10 and infiltrate between the fibers. The stuff base 21 takes shape by aging, which means that the combined cooling stuff 20 and fabric body 10 are placed standing for a period of time to make the stuff base 21 hardened. Each ceramic particle is on a nanometer scale. The auxiliary cooling layer 30 is coated on the cooling stuff 20 and takes shape on the cooling stuff 20. When the fabric is mounted on a portable electronic product or is applied as a case of a portable electronic product, the fabric can transmit the heat evenly because the cooling stuff 20 infiltrates within the fabric body 10. The ceramic particles can further dissipate the heat generated from the portable electronic product rapidly, such that the temperature of the portable electronic product can be cooled down efficiently. 

What is claimed is:
 1. A fabric of composite material comprising: a fabric body having multiple fibers woven with each other; and multiple intervals, wherein each interval is formed between each two adjacent fibers of the multiple fibers; and a cooling stuff coated on the fabric body, filling the intervals, and having two sides; a stuff body filling the intervals; and multiple ceramic particles distributed within the stuff body.
 2. The fabric of composite material as claimed in claim 1, wherein an auxiliary cooling layer is combined with at least one of the two sides of the cooling stuff.
 3. The fabric of composite material as claimed in claim 2, wherein the fibers are carbon fibers, glass fibers, or aramid fibers.
 4. The fabric of composite material as claimed in claim 1, wherein each ceramic particle is on a nanometer scale.
 5. The fabric of composite material as claimed in claim 2, wherein each ceramic particle is on a nanometer scale.
 6. The fabric of composite material as claimed in claim 3, wherein each ceramic particle is on a nanometer scale.
 7. A method of preparing the fabric of composite material as claimed in claim 1, the method comprising acts of: preparing a fabric body and a cooling stuff: weaving the fabric body by multiple fibers, mixing a stuff base and multiple ceramic particles to form the cooling stuff, wherein the stuff base is a viscous liquid; combining the fabric body and the cooling stuff: combining the fabric body and the cooling stuff to let the cooling stuff infiltrate within the fabric body; and aging the cooling stuff: aging the cooling stuff by placing the combined fabric body and cooling stuff standing for a period of time to make the stuff base hardened.
 8. The method of preparing the fabric of composite material as claimed in claim 7 further comprising an act of: combining an auxiliary cooling layer, wherein the auxiliary cooling layer is coated on the cooling stuff and takes shape on the cooling stuff.
 9. The method of preparing the fabric of composite material as claimed in claim 8, wherein the fibers woven to form the fabric body are carbon fibers, glass fibers, or aramid fibers.
 10. The method of preparing the fabric of composite material as claimed in claim 9, wherein each ceramic particle is on a nanometer scale.
 11. The method of preparing the fabric of composite material as claimed in claim 7, wherein the cooling stuff is combined with the fabric body by spraying.
 12. The method of preparing the fabric of composite material as claimed in claim 8, wherein the cooling stuff is combined with the fabric body by spraying.
 13. The method of preparing the fabric of composite material as claimed in claim 9, wherein the cooling stuff is combined with the fabric body by spraying.
 14. The method of preparing the fabric of composite material as claimed in claim 10, wherein the cooling stuff is combined with the fabric body by spraying.
 15. The method of preparing the fabric of composite material as claimed in claim 7, wherein the cooling stuff is combined with the fabric body by pre-impregnation.
 16. The method of preparing the fabric of composite material as claimed in claim 8, wherein the cooling stuff is combined with the fabric body by pre-impregnation.
 17. The method of preparing the fabric of composite material as claimed in claim 9, wherein the cooling stuff is combined with the fabric body by pre-impregnation.
 18. The method of preparing the fabric of composite material as claimed in claim 10, wherein the cooling stuff is combined with the fabric body by pre-impregnation. 